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Finding the Fourth Proportional to 144,401.80, 216,602.70 and 121,592.20

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Solution

The fourth proportional to 144,401.80, 216,602.70 and 121,592.20 is: 182,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,401.80 : 216,602.70 = 121,592.20 : x
  2. Step 2: Convert to fraction form
    144,401.80/216,602.70 = 121,592.20/x
  3. Step 3: Cross multiply
    144,401.80x = 216,602.70 × 121,592.20
  4. Step 4: Simplify right side
    144,401.80x = 26,337,198,818.94
  5. Step 5: Solve for x
    x = 26,337,198,818.94/144,401.80
  6. Step 6: Final answer
    x = 182,388.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.